Answer
False
Work Step by Step
Let $x_1,x_2,x_3$ be linearly independent vectors in an inner product space $V$
Apply Gram-Schmidt process to the set $\{x_1,x_2,x_3\}$ gives $v_1=x_1$
Apply Gram-Schmidt process to the set $\{x_3,x_2,x_1\}$ gives $v_1'=x_3$
Since $x_1 \ne x_3$, the ordered orthogonal bases obtained by applying the Gram-Schmidt process to the set $\{x_1,x_2,x_3\}$ and $\{x_3,x_2,x_1\}$ are distinct.